2/8 is the answer because if you do 3-1 it would equal 2 and then you would put 2 over eight. You can even simplify it to 1/4 because 2 and 8 can both be divided by 2.
Answer:

Step-by-step explanation:
• A rational number is a number which can have a denominator i.e fraction, integers [ have denominator of 1 ]
Answer: NA and Rb and there are 20 protons in calcium!
Step-by-step explanation:
Answer:
Option D. 
Step-by-step explanation:
Let
v------> the volume of a full bottle of Jun's favorite hot sauce, in milliliters
we know that
Using proportion

Answer:
Step-by-step explanation:
when x = 5
x² + 8
= (5)² + 8
= 25 + 8
= 33